.container {
    height: 56px;
    width: 100%;
    align-items: center;
    position: fixed;
}

.back_icon {
    width: 48px;
    height: 48px;
    padding: 12px;
}
.menu_icon {
    width: 48px;
    height: 48px;
    padding: 12px;
    margin-right: 12px;
    object-fit: contain;
}

.title {
    flex: 1;
    font-size: 20px;
    color: #000000;
    line-height: 24px;
    max-lines: 1;
    overflow:hidden;/*超出一行文字自动隐藏*/
    text-overflow:ellipsis;/*文字隐藏后添加省略号*/
    white-space:nowrap;/*强制不换行*/

}